Robert ii



(No Model.)

R. H. BOWLING.

GAR COUPLING.

N0. 414,146. Patented Oct. 29, 1889;.

UNITED STATES PATENT OFFICE.

ROBERT II. DO\VLING, OF NElVARK, OHIO, ASSIGNOR OF 'I\V()-'I.IIIRI)S TO (I'LXR'LES FOLIIET" AND CHARLES H. FOLLE' llOTll OF SAlvlE PLACE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 414,146, dated October 29, 1889.

Application filed July 27, 1889. Serial No. 318,920. (No model.)

To all whom it may concern.- the curved tapering outer guard-wall of the Be it known that I, ROBERT II. DOWLING,a draw-head indicated at a. citizen of the l nited States, and a resident of In the upper and lower walls of the draw- Newark, in the county of Licking and State of head are the bearings (Z (Z for the locking 5 Ohio, have invented certain new and useful key D, these bearings being formed with a Improvements in Car-(ouplings5 and I do desmall offset Z,which extends entirely through clare the following to be a full, clear, and exthe lower bearing and but partially through act description of the invention, such as will the upper bearing. The locking key D is enable othersskilled in the art to which it provided with an offset or stop 6 at the lower IO appertains to make and use the same, referend, and above this offset it is cylindrical. enee beinghad to the accompanying drawings, The key is pivoted to the slide-rod E, which and to letters or figures of reference marked is located in bearings obliquelyin rear of said thereon, which form a part of this specificakey at one corner of the throat of the drawtion. head, and when detached from said slide-rod I5 Figure 1 of the drawings is a perspective can. be removed from the draw-head by pullview of the invention. Fig. 2 is a similar ing it down through the lower aperture. The view, the draw-head and hook being sepaend of the guide-rod indicated at c projects rated. Fig. 3 is a bottom plan View. Figs. 4: downward below the lower surface of the and 5 are details, respectively, of the lockingdraw-head sufficiently to enable thebrakeman 20 pin and guide-rod. to unlock the coupling by an upward blow This invention relates to certain improve upon the lower end of said guide-rod by a flat ments in hook ear-couplings; and it consists angle-operating rod attached underneath the in the novel construction and combination of car and extending to the side of the same, parts, as hereinafter set forth. this action driving upward the guide-rod and 25 In carrying out my inventioml employ a the locking-key connected to the upper end draw-head A and a eoupling-hook or knucklethereof; or, if preferred, said guided-0d, with hook I3, which is held and pivoted between its fiat-ended angle-arm used for operating hearings in the end or head of the draw-bar. the same, can be dispensed with, and an angle The end or head of the draw-bar indicated at operating-rod, extending along the end of the So 30 C is enlarged laterally and of a general semicar to the side thereof and attached bya small circular form, terminating at one forward chain to the top of the looking-key D, may corner in an oblique. outward and forward be used to operate said locking-key I) from extending arm a, and at other forward eorthe side of the car, and a stud may be pro ner portions in the rounded bearings a, which vided at the side of the car near said angle- 3 5 engage the concave shoulder of the knucklerod to hold said angle-arm in raised position hook. The cavity Z) of the head of the drawto prevent a coupling being made, if desired. bar is made tapering vertically from the broad To the lower surface of the draw head at seat between the bearings a" to the are-shaped one side near the rounded bearin g portion is end I), which extends from the throat 0 out a stud f, which carries a spring g. The 4o ward to the root of the horn or arm a. The knuckle hook B consists of the broad hook bearings a are provided on the inner sides portion F and the oblique-tapered pressurewith the angular stops 0, which are located on arm G, which joins the hook portion at the the forward and inner portions of the rounded concave bearings h, which are formed by bearings a, as shown, and engage the semishoulders of said hook portion. This press- 45 circular trunnion ends of the knuckle-hook, tire-arm stands at an angle of about forty limiting its movements. These angle-stops five degrees to the hook, projecting therefrom form the forward and inner portions of the backward and inward toward the throat of recessed trimnion-bearings c, which are open the draw-bar. Its forward face 7; is convex at their outer forward portions, as at c", to and projects from the cavity of the draw I00 50 admit the semicircular trunnion of the head when the hook is open as far as the corknuckle-hook between said angular stops and ner portions of said draw-head, serving to re gages the back bearing of the draw-head, and

said rear portion is provided with an oflfset or lug m, which engages an offset recess m in the back of the cavity of the draw-head when the hook is closed in, and strengthens I its engagement, the guide-rod of the lockingkey engaging the lug m, and when the key 1s down holding the pressure-arm securely between said guide-rod and key, which extends through an aperture or seat at in said pressure-arm. From the upper portion of this seat n extends in the upper surface of the pressure-arm an arc groove n, which, when the locking-key is raised, serves to release the pressure-arm and allow the hook to open outward in uncoupling. The upper and lower tapered surfaces of the pressure-arm extend from its point to the concave shoulders of the hook, and are provided at their junction with said concave shoulders with the semicircular trunnion ends 3, which extend backward and slightly inward from said concave shoulders, as shown.

The lower portion of the hook-head is provided with a lug s to engage the spring 9 of the lug f, whereby it is designed to cause the knuckle-hook to open out automatically when the locking-key is raised to its disengaged position.

It will be observed that the pivotal portion of the knuckle-hook have their stepped bearings facing inward, while the stepped bearings of the draw-head face outward in such a manner that the tapered pressure-arm and its trunnion can be readily slipped into position in the cavity of the draw-head. \Vhen the locking-key and its guide-rod are placed in position and the spring g put inengagement, the coupling is in operative condition. The edge-of the hook-head is notched and perforated usually, as shown, to facilitate its connection with the ordinary link-andpin coupling when necessary.

Having described this invention, what I claim, and desire to secure by Letters Patent,

1. The hook car-coupling having an automatically-opening hook provided with an arc groove, in combination with the lockingkey having an offset or stop at its lower end,

ing-key and its uncoupling and guide rod,-

substantially as specified.

4. In a hook car-coupling, the hook lockingkey provided with a detachable uncoupling and guide rod projecting below the drawhead, substantially as specified.

5. In a car-coupling, the combination, with a draw-head having stepped bearings facing outward in its cavity or chamber, and having on their inner sides angular stops, of the knuckle-hook vhaving its concave shoulderbearings and trunnion-bearings facing inwardly to engage the bearings of said drawhead, said trunnion ends being engaged by said angular shoulders, substantially as specified.

(i. In a car-coupling, the draw-head having the oblique horn and rounded bearings oppositely disposed at the sides thereof, and the knuckle having the concave shoulder-hook portions, and the oblique convex edge-pressure arm extending backward and inward therefrom, in combination with a locking-key, substantially as specified.

7. In a car-coupling,.the combination, with the draw-head having the oblique horn and rounded bearings oppositely disposed, of the knuckle having the concave shoulder-hook and tapered pressure-arm extending inward at an angle of forty-five degrees therefrom, the locking-key, its guide-rod, and openingspring, substantially as specified.

8. In a car-coupling, the combination, with the draw-head having the stepped bearings and tapered cavity, of the concave-shouldered knuckle-hook, having the tapered perforated and grooved pressure-arm, the locking-key, and its guide-rod, substantially as specified.

In testimony whereof I affiX my signature in presence of two witnesses.

ROBERT I-I. DOWLING.

Witnesses:

EDWARD KIBLER, N. L. H LPHREY. 

